Toyota Sienna 1998–2003 — technical service bulletin
Bulletin 00304 · NHTSA communication 10006560 · issued Mar 16, 2004
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
1998–2003
model years
6
vehicle entries
Official summary
Rear brake drum squeal noise. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.